<template>
  <div class="app-container">
    轮播图列表
    <!--查询表单-->
    <el-form :inline="true" class="demo-form-inline">
      <el-form-item>
        <el-input v-model="bannerQuery.title" placeholder="图片名"/>
      </el-form-item>
      <el-form-item label="添加时间">
        <el-date-picker
          v-model="bannerQuery.begin"
          type="datetime"
          placeholder="选择开始时间"
          value-format="yyyy-MM-dd HH:mm:ss"
          default-time="00:00:00"
        />
      </el-form-item>
      <el-form-item>
        <el-date-picker
          v-model="bannerQuery.end"
          type="datetime"
          placeholder="选择截止时间"
          value-format="yyyy-MM-dd HH:mm:ss"
          default-time="00:00:00"
        />
      </el-form-item>
      <el-button type="primary" icon="el-icon-search" @click="getTeacherData()">查询</el-button>
      <el-button type="default" @click="resetData()">清空</el-button>
    </el-form>
    <!-- 表格 -->
    <el-table
      :data="list"
      element-loading-text="数据加载中"
      border
      fit
      highlight-current-row>
      <el-table-column
        label="序号"
        width="70"
        align="center">
        <template slot-scope="scope">
          {{ (page - 1) * limit + scope.$index + 1 }}
        </template>
      </el-table-column>
      <el-table-column prop="title" label="图片名称" width="120" />
      <el-table-column label="图片">
        <template slot-scope="scope">
          <img :src="scope.row.imageUrl" height="80">
        </template>
      </el-table-column>
      <el-table-column prop="gmtCreate" label="添加时间" width="160"/>
      <el-table-column prop="sort" label="排序" width="60" />
      <el-table-column label="操作" width="200" align="center">
        <template slot-scope="scope">
          <router-link :to="'/banner/edit/'+scope.row.id">
            <el-button type="primary" size="mini" icon="el-icon-edit">修改</el-button>
          </router-link>
          <el-button type="danger" size="mini" icon="el-icon-delete" @click="removeDataById(scope.row.id)">删除</el-button>
        </template>
      </el-table-column>
    </el-table>

    <!-- 分页 -->
    <el-pagination
      :current-page="page"
      :page-size="limit"
      :total="total"
      style="padding: 30px 0; text-align: center;"
      layout="total, prev, pager, next, jumper"
      @current-change="getTeacherData"
    />
  </div>
</template>

<script>
  import cms from '@/api/edu/cms'

  export default {
    data() {// 定义数据
      return {
        list: null, // 数据列表
        total: 0, // 总记录数
        page: 1, // 页码
        limit: 10, // 每页记录数
        bannerQuery: {}// 查询条件
      }
    },

    created() { // 当页面加载时获取数据
      this.getTeacherData()
    },

    methods: {
      getTeacherData(page = 1) { // 调用api层获取数据库中的数据
        this.page = page
        cms.getPageList(this.page, this.limit, this.bannerQuery).then(response => {
          if (response.success === true) {
            this.list = response.data.rows
            this.total = response.data.total
          }
        })
      },
      resetData() {
        this.bannerQuery = {}
        this.getTeacherData()
      },
      removeDataById(id) {

        this.$confirm('此操作将永久删除该记录, 是否继续?', '提示', {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'
        }).then(() => {
          return cms.removeById(id)
        }).then(() => {
          this.getTeacherData()
          this.$message({
            type: 'success',
            message: '删除成功!'
          })
        }).catch((response) => { // 失败
          if (response === 'cancel') {
            this.$message({
              type: 'info',
              message: '已取消删除'
            })
          } else {
            this.$message({
              type: 'error',
              message: '删除失败'
            })
          }
        })
      }
    }
  }
</script>
